Colorado · Rock climbing · Telluride

The Sun Block aka Southernmost Boulder

Sun Block aka Southernmost Boulder is a 5-route bouldering crag in Colorado.

5 routes
V1 – V3
Bouldering

Is Sun Block aka Southernmost Boulder, The open right now?

Closure in the area

There's a closure order in Grand Mesa, Uncompahgre and Gunnison National Forests. It doesn't name Sun Block aka Southernmost Boulder, The, so check the source for the area it covers (2 listed).

As of · Source: USFS · Grand Mesa, Uncompahgre and Gunnison National Forests. Agencies don't list every closure — check before you go.

Best time to visit The Sun Block aka Southernmost Boulder

Best months: June–July and September. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

  1. Jan

    36° / 0°

    10 wet

  2. Feb

    38° / 5°

    9 wet

  3. Mar

    44° / 13°

    10 wet

  4. Apr

    51° / 22°

    9 wet

  5. May

    60° / 29°

    9 wet

  6. Jun

    73° / 34°

    7 wet

  7. Jul

    77° / 41°

    12 wet

  8. Aug

    74° / 40°

    15 wet

  9. Sep

    68° / 34°

    11 wet

  10. Oct

    57° / 23°

    8 wet

  11. Nov

    45° / 13°

    8 wet

  12. Dec

    36° / 2°

    9 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Telluride 4wnw, CO, 3.2 mi away at 8,646 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

The Southernmost Boulder, also known as Sun Block, is a climbing area in the Norwood Ranger District of the Grand Mesa, Uncompahgre and Gunnison National Forests in Colorado. It sits among a cluster of boulders and climbing spots in the Telluride area, with several other climbing areas and hikes within a short distance. Summer is the most comfortable time to visit. Typical averages from a nearby weather station in Telluride show July highs around 77°F with lows near 41°F, while winter highs stay in the mid-30s and lows drop to near zero. La Junta Peak and the Telluride Edge climbing area are both about 0.3 miles away, and the River Trail is about 0.4 miles off. For an overnight stay, Mill Creek Basin Backcountry Camp is roughly 2.8 miles away.

Routes (5)

Keep exploring — more climbs worth the drive

The Mine BoulderPhoto: Ken Lund, CC BY-SA 2.0 (via Flickr)

The Mine Boulder

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Million Dollar BoulderPhoto: Ken Lund, CC BY-SA 2.0 (via Flickr)

Million Dollar Boulder

~4 min drive

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Main WallPhoto: Lars Plougmann, CC BY-SA 2.0 (via Flickr)

Main Wall

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Streaked WallPhoto: Lars Plougmann, CC BY-SA 2.0 (via Flickr)

Streaked Wall

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Pipeline WallPhoto: Daniel Weber, CC0 (via Flickr)

Pipeline Wall

~5 min drive

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East Jungle GymPhoto: Ken Lund, CC BY-SA 2.0 (via Flickr)

East Jungle Gym

~10 min drive

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The SlabsPhoto: Ken Lund, CC BY-SA 2.0 (via Flickr)

The Slabs

~10 min drive

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Mirror WallPhoto: Ken Lund, CC BY-SA 2.0 (via Flickr)

Mirror Wall

~10 min drive

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Ophir WallPhoto: Ken Lund, CC BY-SA 2.0 (via Flickr)

Ophir Wall

~10 min drive

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